| A | B |
|---|
| variable | a letter that stands for a number of a range of numbers |
| range | difference between greatest and least number |
| mode | number that occurs most often |
| median | middle number when data are in order |
| mean | average |
| cube | a solid figure whose faces are all square |
| digit | symbol used to write numbers: 0,1,2,3,4,5,6,7,8,9 |
| period | a 3-digit group of numbers, separated by other groups by a way to write numbers |
| expanded, standard, and word forms | ways to write numbers |
| exponent | a number that tells how many times another number is used as a factor |
| number line | a line that shows numbers in order |
| equivalent decimals | decimals that name the same amount |
| front-end-estimation | a way to estimate a sum by adding the first digit of each addend and adjusting the result |
| multiple | the product of a number and a whole number |
| commutative property | Example: 3 x 7 = 7 x 3 |
| benchmark numbers | numbers that are simple to work with such as 10, 50, 100, etc. |
| common multiple | a non-zero number that is a multiple of two or more different numbers |
| least common multiple | the least non-zero number that is a multiple of two or more different numbers |
| compatible numbers | numbers that are easy towork with mentally |
| dividend | a number to be divided |
| division | tells how many groups or how many in each group |
| remainder | the number less than the divisor that remains after dividing |
| quotient | the number (other than the remainder) that is the result of the division operation |
| equation | a number sentencethat uses the equal sign to show that two expressions have the same value |
